K-Bikes.com - Excellence in Motion K-Bikes.com - Excellence in Motion
Home Forums Files Gallery Email Articles Surveys Calendar Technical

Community Announcements

We know it has been a challenging few years for all of us, but last year was especially challenging for the support of this community. We had some significant expenses, while the support from our membership continues to be significantly smaller than years past. If you appreciate this community and want to see it continue to grow and improve, it is important that you support us through subscriptions. We are only supported by the community and a hand full of supporting dealers and vendors. We have continued to keep this community free of intrusive advertising and banners, unlike most other online communities, but if we cannot pay the bills, we will be forced to look at some sort of advertising in the near future. If you are not a member, please take a moment and purchase a subscription.

Please thank the Vendors and Dealers who support this community by giving them a chance to earn your business.


Welcome to the K-Bikes.com - Excellence in Motion.
The K-Bikes community exists to promote a friendly, on-line community specifically related to BMW's line of K-series motorcycles. The information on this site is primarily related to the BMW's K-based Sport Touring Motorcycles - the BMW K1200RS, K1200GT, K1200S, and K1200R; however, all riders who share many similar interests amongst the larger BMW rider community are welcome to join in on the fun.

If this is your first visit, be sure to check out the FAQ. In order to use most of the features of the site, you must register. To start viewing messages, select the forum that you want to visit from the selection below.

If you have any questions regarding this community, please use the Contact Us form and an we will get back to you ASAP.


Go Back   K-Bikes.com - Excellence in Motion > Bikes > Other K-Bikes Discussion
User Name
Password
Register Site FAQ Calendar Search Today's Posts Mark Forums Read


Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old Jan 5th, 2012, 1:45 pm
Ronnie_D Ronnie_D is offline
Noob
 
Join Date: Dec 2011
Location: Airdrie, AB, Canada
Posts: 10
Post Antifreeze gelling in coolant system ?

Hello all:

I am in the process of fixing my K100 and I have noticed antifreeze gell globs in the coolant passages and the waterpump. I have read the BMW bulletin that is attached to this post and was wondering what is the best product to use to flush this gell out before I put in the new BMW antifreeze?

cheers,
Ron
Attached Files
File Type: pdf anti freeze 00 055 88 (2333).pdf (881.4 KB, 41 views)

Last edited by Ronnie_D : Jan 5th, 2012 at 2:33 pm.
Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old Jan 5th, 2012, 4:25 pm
voxmagna voxmagna is offline
Addict
 
Join Date: Mar 2004
Location: , , UK
Posts: 3,590
I found that attachment very interesting, if only for BMW to justify their antifreeze product!

I do agree that reducing the antifreeze mix to 40/60 water improves cooling if you don't need the lower freezing temperature protection.

As for the Gel, the article seems to suggest that one cause of Gel build up can be corrosion which is a bit scary. It also mentions calcium in water so one rule there could be to make up the coolant mix with de-ionised water.

I'm no chemist, but I have a few ideas. I'm wondering if this Gel forms more easily with 50/50 mixes - the higher the concentration the more easily it stays insoluble and if it is left in there for longer than say a couple of years. I note what they say about changes in the chemical mix of non-BMW antifreezes, but are they saying that 100's of 1000's of cars are all running around with gelled coolant, blockages and overheating?

I think the reason K motors get so hot, is they don't design their cooling systems well enough. If the sustained heat cycling and hot running can cause coolant gelling, then I blame the design, not their fix to bring out a new antifreeze or criticism of other formulae widely used in vehicles that don't suffer extreme heat changes in their cooling systems!

What to do? I'm no chemist but I'd suggest filling the system with clean water, run the bike to fans on on the stand for 15 minutes or so whilst burping the hoses. Switch off and let the bike cool, drain and refill again and repeat. Do this 3 times, then refill with a new coolant mix using de-ionised water. I'm suggesting this because the Gel, may be more soluble in clean hot water, than in a coolant mix. You could always fish some out and shake it up with hot water to see if it dissolves. If it doesn't then we are looking for an alternative chemical solvent. You could test samples with petrol, alcohol, brake cleaner etc. Whilst you won't be filling up your system with these, you could use solvents to flush through each rad. off the bike, then follow up with plenty of water.

The most important place to get 'Gel free' are the radiators as they have the smallest holes! If you wanted to go the full hog you could make up an adaptor to your garden hose and push clean water through.

You raise an interesting point relevant to all the K's, because they all get too hot, except my KRS that has been running with 4 cooling fans. for a few years now.
Reply With Quote
  #3  
Old Jan 5th, 2012, 7:54 pm
HCorn HCorn is offline
Rookie
 
Join Date: Apr 2011
Location: Northern Virginia, VA, USA
Posts: 32
I've heard of gelling occurring when different types of antifreeze are mixed. IIRC, it was mixing certain long life antifreezes (OAT coolants). Pretty much anecdotal, but it seems like even mechanics who think it isn't a big deal, don't suggest mixing different types. And when I say "type" I'm talking chemical makeup, not brand or color.

Here's a car talk link: http://www.cartalk.com/content/i-ha...y-months-ago-my
Reply With Quote
  #4  
Old Jan 6th, 2012, 7:47 pm
stokester's Avatar
stokester stokester is offline
Senior Member
 
Join Date: Oct 2010
Location: Yorktown, VA, USA
Posts: 150
Quote:
Originally Posted by Ronnie_D
Hello all:

I am in the process of fixing my K100 and I have noticed antifreeze gell globs in the coolant passages and the waterpump. I have read the BMW bulletin that is attached to this post and was wondering what is the best product to use to flush this gell out before I put in the new BMW antifreeze?

cheers,
Ron

Don't know about the best procedure but I've used Robert Fleisher's (Snowbum) site for advice on how to fix my Airhead and do some procedures on my K75. He has a recommended procedure for flushing the radiator and mixing a 40/60 ratio of coolant.

http://bmwmotorcycletech.info/k-coolant.htm
__________________
Nick
1993 K75S
1991 R100RT
1982 Yamaha XJ650RJ Seca
1978 R100S
Reply With Quote
  #5  
Old Feb 5th, 2012, 12:33 pm
oilhead110's Avatar
oilhead110 oilhead110 is offline
Noob
 
Join Date: Mar 2006
Location: NA, Iowa, USA
Posts: 22
Quote:
Originally Posted by Ronnie_D
Hello all:

I am in the process of fixing my K100 and I have noticed antifreeze gell globs in the coolant passages and the waterpump. I have read the BMW bulletin that is attached to this post and was wondering what is the best product to use to flush this gell out before I put in the new BMW antifreeze?

cheers,
Ron


You might want to try Honda Type 2 Automotive antifreeze, I have used it for years in two K100's I have and my cooling systems both look pristine inside. It comes 50/50 premix. The one K100 I had that used BMW coolant has a buildup of deposits in the system.

Not sure of the Honda formulation but the stuff is different.
Reply With Quote
Reply


Similar Threads
Thread Thread Starter Forum Replies Last Post
Absolutely the most detailed description of the K1200S I've come across... sinc K12/1300S 20 Jul 19th, 2014 9:04 am
Coolant replacement questions. LesterV K12/1300GT (Next Gen) 9 Jun 23rd, 2011 10:05 am
18K Service - How many hours? Captain K12R K12/1300R/R-Sport 8 Jun 17th, 2011 11:18 am
New ABS System and Advanced Stability Control Details eljeffe Bike Talk 0 Jul 16th, 2006 4:43 pm
full system exhaust shootout evoluzione K12/1300S 31 Jun 28th, 2006 5:06 pm


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 1:23 pm.


K-Bikes.com is powered by: vBulletin Version 3.0.9
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright © 2007, Enthusiast Communities, LLC
BMW, K1200, K1200RS, K1200GT, K1200R, K1200S, k-bikes, k-bikes.com, motorcycle, motorcycles, 2006 K1200GT, K-Bikes.com - Excellence in Motion including K1200RS, K1200GT, K1300GT, K1200S, K1300S, K1200R, K1300R motorcycles, BMW Motorrad, BMW Motorcycles, 2006 BMW K1200GT, 2006 BMW K 1200 GT, 2007 BMW K1200GT, 2007 BMW K 1200 GT, 2008 BMW K1200GT, 2008 BMW K 1200 GT, 2009 BMW K1300GT, 2009 BMW K 1300 GT, k12rs, k12gt, k12s, k12r
Spammer's Honeypot